High rigidity polyethylene metal winding structural wall pipe and its production method and equipment

Abstract

The invention relates to a high-rigidity polyethylene metal twisted structure wall tube stock which is formed by an inner wall layer and an outer wall layer, wherein the inner wall layer is a continuous solid wall tube which is formed by twisting a sheet polyethylene metal strip on a steel core roller die in a spiral mode and sequentially overlapping and integrating the peripheries of the adjacent strips. The high-rigidity polyethylene metal twisted structure wall tube stock is characterized in that the outer wall layer is formed by an outward-protruding reinforcing rib, wherein the outward-protruding reinforcing rib is formed by twisting a tubular polyethylene strip wrapped by a tubular metal strip on the outer surface of the inner wall layer in a spiral mode, and the tubular polyethylene strip is pressed on the overlapping and integrating seam portions of the edges of the adjacent polyethylene strips in a spirally striding mode. The invention further relates to a manufacturing method and a manufacturing device of the tube stock. The high-rigidity polyethylene metal twisted structure tube stock has the advantages of being high in annular rigidity, light in weight and wide in application range, the manufacturing method has the advantages of being scientific and reasonable in technology and low in energy consumption, and the manufacturing device has the advantages of being capable of being formed integrally in an on-line mode, high in efficiency and stable to work.

Description

technical field [0001] The invention belongs to the technical field of plastic pipes and their processing, and in particular relates to a high-rigidity polyethylene metal winding structure wall pipe and its production method and equipment. Background technique [0002] At present, in many fields such as sewer pipes and drainage projects in cities, the use of plastic pipes is becoming more and more extensive. Green environmental protection building material high-density polyethylene winding structure wall pipe has been widely used for its socket type electric fusion welding and excellent interface performance. There is no pressure inside the drain pipe, which belongs to the pressureless drainage system. External pressure, therefore, the ring stiffness of the pipe is a crucial performance index. The polyethylene winding structural wall pipe is made of high-density polyethylene resin as the main raw material, and adopts a thermal winding molding process, with polypropylene corr...

AI Technical Summary

Problems solved by technology

In order to improve the rigidity of the pipe ring, it is necessary to increase the wall thickness of the pipe body, increase the diameter of the skeleton pipe, etc., which increases the amount of raw materials and increases the cost of the pipe, and the increase in the rigidity of the pipe ring is limited, which has a certain impact on the scope of application of the product. limitation

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